<html>
<body>
<h2>Hello World!</h2>

<h2>表单请求</h2>
<form action="abc/login.do" method="post"
      enctype="application/x-www-form-urlencoded">
    用户名:<input name="name">
    密码:<input name="pwd">
    <button>提交</button>
</form>

<h2>文件上传请求</h2>
<form action="abc/login.do" method="post"
      enctype="multipart/form-data">
    用户名:<input name="name">
    密码:<input name="pwd">
    <button>提交</button>
</form>

<h2>普通GET请求</h2>
<form action="abc/login.do">
    用户名:<input name="name">
    密码:<input name="pwd">
    <button>提交</button>
</form>

</body>
</html>
